A gas is confined in a graduated cylinder closed by a movable piston. When the room temperature is 37°C, the volume of the gas at atmospheric pressure is 62 ml. The cylinder is then immersed in a bath

Question

A gas is confined in a graduated cylinder closed by a movable piston. When the room temperature is 37°C, the volume of the gas at atmospheric pressure is 62 ml. The cylinder is then immersed in a bath containing a mixture of liquid and solid naphthalene maintained at the normal freezing point of naphthalene. The piston moves to maintain constant atmospheric pressure. The volume of the gas at the freezing point of naphthalene is 56 ml. The freezing point of naphthalene (in °C) is

Answer:

7

Solution:

Constant pressure, so V/T is constant: 62/310 = 56/T₂, giving T₂ = 56 × 310/62 = 280 K.

Freezing point = 280 - 273 = 7 °C.

TestHub · Accepted Answer

Constant pressure, so V/T is constant: 62/310 = 56/T₂, giving T₂ = 56 × 310/62 = 280 K. Freezing point = 280 - 273 = 7 °C.

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