a. i. What is the enthalpy change when 20.0 g of H2O(l) is heated from 20.0 °C to 25.0 oC? (Assume constant pressure an
Posted: Wed May 25, 2022 6:48 am
a. i. What is the enthalpy change when 20.0 g of
H2O(l) is heated from 20.0 °C to 25.0
oC? (Assume constant pressure and the specific heat
capacity of H2O(l) (4.18 J / g
°C) to be constant).
ii. Is the process described in 3ai endothermic or
exothermic?
b. Determine the amount of heat evolved when 10 g of sodium
hydroxide (NaOH(s))
is dissolved in water under standard state at 25
oC.
H2O(l) is heated from 20.0 °C to 25.0
oC? (Assume constant pressure and the specific heat
capacity of H2O(l) (4.18 J / g
°C) to be constant).
ii. Is the process described in 3ai endothermic or
exothermic?
b. Determine the amount of heat evolved when 10 g of sodium
hydroxide (NaOH(s))
is dissolved in water under standard state at 25
oC.