Solved

Ethanol ( OH)melts at -114 °C

Question 107

Multiple Choice

Ethanol ( Ethanol (    OH) melts at -114 °C.The enthalpy of fusion is 5.02 kJ mol<sup>-1</sup>.The specific heats of solid and liquid ethanol are 0.97 J g<sup>-1</sup> °C<sup>-1</sup> and 2.3 J g<sup>-1</sup> °C<sup>-1</sup>,respectively.How much heat (kJ) is needed to convert 25.0 g of solid ethanol at -135 °C to liquid ethanol at -50 °C? A) 207.3 kJ B) -12.7 kJ C) 6.91 kJ D) 4192 kJ E) 9.21 kJ Ethanol (    OH) melts at -114 °C.The enthalpy of fusion is 5.02 kJ mol<sup>-1</sup>.The specific heats of solid and liquid ethanol are 0.97 J g<sup>-1</sup> °C<sup>-1</sup> and 2.3 J g<sup>-1</sup> °C<sup>-1</sup>,respectively.How much heat (kJ) is needed to convert 25.0 g of solid ethanol at -135 °C to liquid ethanol at -50 °C? A) 207.3 kJ B) -12.7 kJ C) 6.91 kJ D) 4192 kJ E) 9.21 kJOH) melts at -114 °C.The enthalpy of fusion is 5.02 kJ mol-1.The specific heats of solid and liquid ethanol are 0.97 J g-1 °C-1 and 2.3 J g-1 °C-1,respectively.How much heat (kJ) is needed to convert 25.0 g of solid ethanol at -135 °C to liquid ethanol at -50 °C?


A) 207.3 kJ
B) -12.7 kJ
C) 6.91 kJ
D) 4192 kJ
E) 9.21 kJ

Correct Answer:

verifed

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Unlock this Answer For Free Now!

View this answer and more for free by performing one of the following actions

qr-code

Scan the QR code to install the App and get 2 free unlocks

upload documents

Unlock quizzes for free by uploading documents