How much heat energy must be removed from 150 g of oxygen at 22°C to liquefy it at -183°C? (The specific heat of oxygen gas is 0.218 cal/g•°C, and its heat of vaporization is 50.9 cal/g.)

a. 14,300 cal
c. 4320 cal
b. 9560 cal
d. 2160 cal


A

Physics & Space Science

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