0.3 g of ethane undergoes combustion at 27°C in a bomb calorimeter. The temperature of calorimeter s — JEE Mains Chemistry Past Papers Chemistry Question
Question
0.3 g of ethane undergoes combustion at 27°C in a bomb calorimeter. The temperature of calorimeter system (including the water) is found to rise by 0.5°C. The heat evolved during (Nearest integer) [Given : The heat capacity of the calorimeter system is 20kJ K–1, R = 8.3 JK–1 mol–1. Assume ideal gas behaviour. Atomic mass of C and H are 12 and 1g mol–1 respectively] NTA (1006) Reso (1006)
Answer: A
💡 Solution & Explanation
Moles of ethane = 0.1 Q = CT = –1000 kJ/mol H = E + ng Rt. ng = –5/2 H = –1006 kJ/mol. | JEE(Main) 2023 | DATE : 01-02-2023 (SHIFT-2) | PAPER-1 | OFFICIAL PAPER | CHEMISTRY PAGE # 9
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