For 23., you have to find a way to measure your heart rate not increase it. search it up on google.
We are provided with the amount of energy released when one mole of carbon reacts. We mus first convert the given mass of carbon to moles and then compute the energy released for the given amount.
Moles = mass / atomic mass
Moles = 23.5 / 12
Moles = 1.96 moles
One mole releases 394 kJ/mol
1.96 moles will release:
394*1.96
= 772.24
The enthalpy change of the reaction will be -772.24 kJ
Answer:
627.6J
Explanation:
q=mcΔT
where:
q = heat energy (J)
m = mass (g)
c = specific heat (g/j*C)
Δt = change in temperature (C/K)
q= (150)(4.184)(1) = 627.6
