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When 5.0g of KOH is added to 100mL of water, the temperature of the solution increases by 3C. Assume the density of the solution to be 1g/mL and specific heat capacity of the solution to be 4.184 J/g K.
a. Calculate the amount of heat absorbed by the solution
b. Find the enthalpy change for the dissolution of KOH
c. Find the enthalpy per mole of KOH
A single pulse of a laser yields an average of 5.00 × 1018 photons with λ = 633 nm. If melting ice to water at 0°C requires 6.01 kJ/mol, what is the fewest number of laser pulses need to melt 10.0g of ice?
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