Answer:
Q1= C
Q2= Ice melts when heat energy causes the molecules to move faster, breaking the hydrogen bonds between molecules to form liquid water. ... This is why an ice cube melts more quickly on the outside and retains its coldness and solidity longer at the center: melting is a cooling process.
Explanation:
Mine was 1st!
Q = mCΔT
Q is heat in Joules, m is mass in grams, C is specific heat, and ΔT is change in temp
2,510.0 J = (.158 kg x 1000 g per kg)C(61 - 32) = .548 J / gram K
Answer:
The number of moles = 0.66 mole
Explanation:
Given as :
The volume of container (V) = 10.0 liter
The temperature (T)= 373 kelvin
The pressure of gas (P) = 203 k pa = 2.0034 atm
Let the number of mole = n
Now from at ideal gas law
PV = nRT
Where R = 0.08206 L atm per mol per kelvin
SO, (2.0034 × 10 ) = n × 0.08206 × 373
Or, (20.034 ) = n × 30.608
∴ n =
Or n = 0.654
Hence the number of mole = 0.66 mole Answer
I believe that the correct answer would be energy since you need energy for any kind of chemical change to occur. I hope this helped you with your question! If you have any questions please let me know and I might be able to further assist you.
Pesticides. They are known to be helpful for getting rid of pests and insects, but are also known to harm wildlife.