Tuesday
March 31, 2015

Homework Help: Biology

Posted by Jessie on Tuesday, March 17, 2009 at 3:01am.

Hi guys,
need help with homework...got some done, but not sure about these thanks for any help! :)
Take a balloon filled with hydrogen gas. Touch a match
to the balloon. What happens? Big boom and lots of heat
given off. Is ΔH favorable or unfavorable?? It would be favorable as its going out to the environment, right?
Add solid urea to a beaker of water. The beaker gets very cold.
Is ΔH favorable or unfavorable???
Unfavorable as there would be no net heat lost, right?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - You have two gas-filled balloons, one containing He and the other ...
AP Chemistry - The buoyant force on a balloon is equal to the mass of air it ...
Chemistry - You have two gas-filled balloons, one containing He and the other ...
Chemistry - The buoyant force on a balloon is equal to the mass of air it ...
AP Chemistry - The buoyant force on a balloon is equal to the mass of air it ...
physics - A large balloon of mass 237 kg is filled with helium gas until its ...
chem - In 1897 the Swedish explorer Andree tried to reach the North Pole in a ...
PHYSICS - A large balloon of mass 237 kg is filled with helium gas until its ...
chemistry - 1. A gas cylinder contains 0.722 mL of hydrogen gas at a pressure of...
Chemistry - A balloon is floating around outside your window. The temperature ...

Members