Question

Question No. 20
Steam at 100 °C is passed into 1.1 kg of water contained in a calorimeter of water equivalent 0.02 kg at 15°C till the temperature
of the calorimeter and its contents rises to 80 °C. The mass of the steam condensed in kg is (Given specific heat capacity of
water - 1 kcal kg 10 latent heat of condensation of steam 540 kcal ky"
O 0.130
0.065
0.260
0.135​

Answer 1

Answer:

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Answer 2

Answer:

The mass of the steam condensed in kg is 0.130 kg.

Explanation:

Given,

Steam at 100ºC is passed into 1.1 kg of water contained in a calorimeter of water equivalent 0.02 kg at 15ºC till the temperature of the calorimeter and its contents rises to 80ºC.

To find: The mass of the steam condensed in kg.

Solution:

Applying conservation of heat Energy,

Heat released by steam = heat gained by water and calorimeter

mL + m × S (100 – 80) = (1.1 + 0.02) × S × (80 – 15)

m × 540 + 20 m = 1.12 × 65

m = 0.130 kg.

Therefore, The mass of the steam condensed in kg is 0.130 kg.