IMPS College of Engineering & Technology
#### 17 Glorious years of Excellence in Technical Education

Home Laboratory Details

**Chemistry Lab**

**Code: CH191 (EE & ECE) / CH291 (CE & CSE) **

**Credits: 2**

**1.** To Determine the alkalinity in a given water sample.

**2.** Red-ox titration (estimation of iron using permanganometry)

**3.** To determine calcium and magnesium hardness of a given water sample separately.

**4.** To determine the value of the rate constant for the hydrolysis of ethyl acetate catalyzed by hydrochloric acid.

**5.** Heterogeneous equilibrium (determination of partition coefficient of acetic acid between *n-butanol* and *water*)

**6.** Viscosity of solutions (determination of percentage composition of sugar solution from viscosity)

**7.** Conductometric titration for determination of the strength of a given HCl solution by titration against a standard NaOH solution.

**8.** *pH*- metric titration for determination of strength of a given HCl solution against a standard NaOH solution.

**9.** Determination of dissolved oxygen present in a given water sample.

**10.** To determine chloride ion in a given water sample by Argentometric method (using chromate indicator solution)

__N.B: __** at least Six** experiments must perform in a semester out of

**Engineering Physics Lab (PH-191/PH-291) **

** B.Tech 1 ^{st} and 2^{nd} Semester**

- Determine the Young’s modulus of elasticity for the material of the given bar by flexure method.
- Determine the co-efficient of viscosity of the given liquid by its rate of flow through the given capillary tube take at least five pressure differences draw the h-v graph. (Given Length of capillary tube l =50cm, radius of the capillary tube r = 0.05cm).

- Determine the modulus of rigidity of the supplied wire by dynamic method. (Given Mass of the cylinder given = 3000 gm)

- Determine the modulus of rigidity of the supplied wire by static method

- Determine the resistance per unit length of the meter bridge wire using carry fosters bridge and find the value of the supplied unknown resistance.

- Determine the reflective indices of the material of the supplied rays and the mean ray. Hence calculate the dispersive power of the material of the prism in the wavelength region considered (Given: Angle of the prism =60
^{0})

- Determine the wavelength of light by laser diffraction method.

(No. of lines in grating = 7500 LPI)

- Determine the wavelength of monochromatic light by Newton’s ring method.

(Radius of curvature of Plano convex lens R = 100cm)

**Engineering Physics Lab (PH-391/PH-491) **

** B.Tech 3rd and 4th Semester**

- Find the value of hall co-efficient of the given semiconductor by measuring Hall voltage as a function of applied hall current and magnetic field at room temperature.

(Given: Thickness of semiconductor = t = 0.05cm)

- Determination resistivity of the given semiconductor as a function of temperature by four probe method and hence estimate the band gap.

( Given: i) Distance between two consecutive probe = s = 0.2 cm.

ii) Thickness of semiconductor = w = 0.05cm)

- Verify Stefan’s law of radiation with the help of a vacuum diode and hence determine Stefan’s constant.

( Data for the calibration curve of source resistance vs temperature will be supplied.)

( Given: E = emissivity of the cathode surface = 0.24

S= 2*πrl* = surface area of the cathode =*2.42**x**10**-**4**m**2*

Resistance – temperature data

R |
T |

1 |
300 |

4 |
920 |

6 |
1300 |

8 |
1645 |

10 |
1990 |

- Determine of the wavelength of the spectral lines emitted from the hydrogen discharge tube using a grating spectrometer and hence calculate the Rydberg constant for hydrogen.

(No. of lines in grating = 7500 LPI)

- Determine the Planck’s constant for three different wavelength of light by using stopping potential concept. (Given: B = 4800 A
^{0 }, G = 5500 A^{0 }, Y = 5800 A^{0 })

- Determine the specific charge (e/m) of electron by J.J. Thomson’s method. (Given: Separation between the deflecting plates =…mm, Length of the deflecting plate =.. mm, Distance of Screen from the edges of plates p, q = ….mm)
- Determine the V-I characteristic of a given solar cell and verify maximum power low. With the load corresponding to maximum power find the areal and spectral characteristics. (Given: B = 4800 A
^{0 }, G = 5500 A^{0 }, Y = 5800 A^{0 }, O = 6000 A^{0 }, R = 7000 A^{0 })