Answer:
None of the options are correct.
Explanation:
1) when the temperature of the solution is increased the solubility of the gas in the liquid decreases , hence option 1 is incorrect.
2)The heat released by the dissolution of an ionic compound in water is heat of hydration of the compound and is independent of the initial temperature of the solution.
3) The solubility of a liquid in water is not affected significantly by the pressure changes in the system as gases only have a significant cahne in solubility with change in pressure.
Solution is not a pure substance b/c it is mixture of two substance
Answer:At 
food will cook in the pressure cooker set on high.
Explanation:
Standard atmospheric pressure 
= 14.7 Psi = 1.0001 atm (1 Psi=0.06804 atm)
Standard temperature
= 273.15 K
Highest pressure offered by pressure cooker: 12.8 Psi = 0.8709 atm
Pressure (
) inside the pressure cooker on the highest setting at temperature
:
= 1.0001 atm + 0.8709 atm = 1.8710 atm
According to Gay lussac law :
(at constant Volume)
At food will cook in the pressure cooker set on high.
Answer:
The independent variable
Explanation:
This is because, we are looking for what changed which that immediately crosses out control variable and hypothesis
Need a picture for reference
