[Answered] Calculate the change internal energy (E) for a system that is giving off 45.0 kJ of heat and is ...

This topic contains a solution. Click here to go to the answer

Author Question: Calculate the change internal energy (E) for a system that is giving off 45.0 kJ of heat and is ... (Read 18 times)

Diane

Hero Member
Posts: 576

on: Aug 27, 2018

Calculate the change internal energy (E) for a system that is giving off 45.0 kJ of heat and is performing 855 J of work on the surroundings.

A) 44.1 kJ
B) -44.1 kJ
C) -45.9 kJ
D) 9.00 102 kJ
E) -9.00 102 kJ

Question 2

When covalent bonds are broken energy is released.

Indicate whether the statement is true or false

Need homework help now?

Ask unlimited questions for free

Ask a Question

Marked as best answer by a Subject Expert

aruss1303

Sr. Member
Posts: 314

Reply #1 on: Aug 27, 2018

Answer to Question 1

C

Answer to Question 2

FALSE

Diane

Hero Member
Posts: 576

Reply #2 on: Aug 27, 2018

Thanks

aruss1303

Sr. Member
Posts: 314

Reply #3 on: Aug 27, 2018

Welcome

« previous next »

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

The FDA recognizes 118 routes of administration.