thermo flashcards

what does it mean when delta G<0

forward reaction is spontaneous and reverse is not

what does it mean when delta G >0

the forward reaction is not spontaneous but the reverse reaction is

what does it mean when delta G =0

at equilibrium

what is standard state

for solid/liquid: pure solid or liquid under 1 atm

gas: 1 atm

solution: 1M

what does it mean if delta H is negative and delta S is positive

favorable at all temperatures

delta H positive and delta S negative

never favorable

delta H negative and delta S negative

favorable at low temperatures

delta H positive and delta S positive

favorable at high temperatures

how does entropy increase(3 things)

when there’s an increase in volume because the molecules become more dispersed(for gas)

and if moles of gas of products are greater than moles of gas in reactants

higher temperatures

is forming new bonds endothermic or exothermic

exothermic

is breaking bonds endothermic or exothermic

endothermic

what is the definition of specific heat?

the heat required to raise the temperature of the unit mass of a given substance by a given amount

what is bond enthalpy

how much energy is needed to break or form a bond