contestada

For each of the following systems and time intervals, select the appropriate version of
ΔK + ΔU + ΔEint = W + Q + TMW + TET + TER,
the conservation of energy equation.
(a) the heating coils in your toaster during the first five seconds after you turn the toaster on

ΔEint = Q + TET + TER

ΔK + ΔU + ΔEint = W + Q + TMW + TMT


ΔU = Q + TMT

0 = Q + TMT + TET + TER

ΔK = W + Q

ΔEint = W + Q + TET

ΔU = W + Q + TMW + TMT

(b) your automobile from just before you fill it with gas until you pull away from the gas station at speed v

ΔEint = Q + TET + TER

ΔK + ΔU + ΔEint = W + Q + TMW + TMT


ΔU = Q + TMT

0 = Q + TMT + TET + TER

ΔK = W + Q

ΔEint = W + Q + TET

ΔU = W + Q + TMW + TMT

(c) your body while you sit quietly and eat a peanut butter and jelly sandwich for lunch

ΔEint = Q + TET + TER

ΔK + ΔU + ΔEint = W + Q + TMW + TMT


ΔU = Q + TMT

0 = Q + TMT + TET + TER

ΔK = W + Q

ΔEint = W + Q + TET

ΔU = W + Q + TMW + TMT

(d) your home during five minutes of a sunny afternoon while the temperature in the home remains fixed

ΔEint = Q + TET + TER

ΔK + ΔU + ΔEint = W + Q + TMW + TMT


ΔU = Q + TMT

0 = Q + TMT + TET + TER

ΔK = W + Q

ΔEint = W + Q + TET

ΔU = W + Q + TMW + TMT

Respuesta :

meerkat18

The heating coils in you toaster during the first five seconds after you turn the toaster on is Δ K = W + Q.


Your automobile just before you fill it with gas until you pull away from the gas station at speed v is ΔK + ΔU + ΔEint = W + Q + TMW + TMT   

 

your body while you sit quietly and eat a peanut butter and jelly sandwich for lunch is ΔEint = Q + TET + TER

your home during five minutes of a sunny afternoon while the temperature in the home remains fixed is ΔU = W + Q + TMW + TMT  

 

 

Otras preguntas