Question

300 cal of heat supplied to raise the temperature of 50 gram of air from 20 degree Celsius to 30 degree Celsius without any change in volume change in internal energy per gram of air is

Answer 1

Answer:

300 calories of heat is supplied to raise the temperature of 50 gm of air from 20°C to 30°C without any change in its volume. Change in internal energy per gram of air is

(a) zero

(b) 0.6 calories

(c) 1.2 calories

(d) 6.0 calories

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answered Jul 16 by Ritika (68.6k points)

selected Jul 16 by Vikash Kumar

Correct option: (d) 6.0 calories

Explanation:

∆Q = MCVdT

Change in internal energy in any thermodynamics process. dU = MCVdT

= 1 × 3/5 × 10 = 6 cal