A chemical equations that includes the amount of heat released or absorbed during a reaction

1 answer:

3 0

The potential energy stored in the form of heat is called as enthalpy of a system. The reactions in which a system absorbs heat, are called as endothermic reactions. The ones in which a system releases heat, are called as exothermic reactions

You might be interested in

49.2 m = _________ hm

dalvyx [7]

The answer is 0.492 because there are 100 meters in a hectometer, and 49.2/100 is 0.492

4 0

4 years ago

If 4.55 mol of calcium carbide (CaC2) reacts with an excess of water, how many moles of acetylene (C2H2), a gas used in welding,

Rina8888 [55]

Answer:

4.55 mol of C₂H₂

Explanation:

Let's verify the reaction:

CaC₂ + 2H₂O → C₂H₂ + Ca(OH)₂

Ratio is 1:1, so 1 mol of calcium carbide will produce 1 mol of acetylene.

4.55 mol of CaC₂ will make the same amount of C₂H₂

3 0

3 years ago

Read 2 more answers

A balloon filled with helium has a volume of 30.0 L at a pressure of 100 kPa and a temperature of 15.0°C. What will the volume o

Sholpan [36]

Answer:

$V_2=20.1L$

Explanation:

Hello there!

In this case, since this is a problem in which the pressure of the gas remains constant, we can use the Charles' law as a directly proportional relationship between temperature (in Kelvins) and volume given by:

$\frac{V_2}{T_2} =\frac{V_1}{T_1}$