The mathematical expression for the change in free energy of a system is ΔG =ΔH

Author Question: The mathematical expression for the change in free energy of a system is ΔG =ΔH (Read 665 times)

Hawke

Hero Member
Posts: 679

on: Jun 10, 2013

The mathematical expression for the change in free energy of a system is ΔG =ΔH - TΔS. Which of the following is (are) correct?
A) ΔS is the change in enthalpy, a measure of randomness.
B) ΔH is the change in entropy, the energy available to do work.
C) ΔG is the change in free energy.
D) T is the temperature in degrees Celsius.

coco

Hero Member
Posts: 739

Reply #1 on: Jun 11, 2013

Try C. I remember this question on my exam.

Need homework help now?

Ask unlimited questions for free

Ask a Question

Hawke

Hero Member
Posts: 679

Reply #2 on: Jun 12, 2013

Thanks, and your suggestion was right.

« previous next »

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.