Answer:
The answer to your question is T2 = 610.9 °K
Explanation:
Data
Volume 1 = V1 = 30 cm³
Temperature 1 = T1 = 420 °K
Pressure 1 = P1 = 110 kPa
Volume 2 = V2 = 40 cm³
Temperature 2 = T2 = ?
Pressure 2 = P2 = 120 kPa
Process
To solve this problem use the combined gas law.
P1V1/T1 = P2V2/T2
-Solve for T2
T2 = P2V2T1 / P1V1
-Substitution
T2 = (120 x 40 x 420) / (110 x 30)
-Simplification
T2 = 2016000 / 3300
-Result
T2 = 610.9 °K
Answer:
A) The reaction absorbs energy
This is because the before reading show the temperature of 20°C whereas the after reading show the temperature of 13 °C
<h3>
<em><u>MORE</u></em><em><u> </u></em><em><u>TO</u></em><em><u> </u></em><em><u>KNOW</u></em><em><u> </u></em></h3>
- The reaction in which energy is absorbed is known as <em><u>Endothermic</u></em><em><u> </u></em><em><u>reaction</u></em><em><u> </u></em>
- The reaction in which energy is releases is known <em><u>Exothermic</u></em><em><u> </u></em><em><u>reaction</u></em>
Collision theory basically explains that gas-phase chemical reactions occur when molecules collide with sufficient kinetic energy.