When one gram of liquid ethanol, C2H5OH (l), is burned, 29.7 kJ of heat are released. How much heat is released when 4.337 pounds of liquid ethanol are burned?

58425.84 kJ is released when 4.337 pounds of liquid ethanol are burned.

Explanation:

Given that:-

When 1 gram of liquid ethanol is burnt, 29.7 kJ of energy is released.

The conversion of pounds to gram is shown below as:-

1 pound = 453.6 gram

Given mass of liquid ethanol = 4.337 pounds.

So,

4.337 pounds = 453.6*4.337 grams = 1967.2 grams

Thus,

When 1967.2 gram of liquid ethanol is burnt, 29.7*1967.2 kJ of energy is released.

58425.84 kJ is released when 4.337 pounds of liquid ethanol are burned.