m=30 g = 0,03 kg
t₁=5 ⁰C
Q=39 J
cw=130 J/(kg ⁰C)
t₂ = ?
[tex]Q=c_w*m*\Delta T=c_w*m*(t_2-t_1)\\ \\t_2-t_1=\frac{Q}{c_w*m}\\ \\t_2=\frac{Q}{c_w*m}+t_1=\frac{39 \ [J]}{130 \ [\frac{J}{kg \ ^{\circ}C}]*0,03 \ [kg]}+5 \ [^{\circ}C]=10+5=15 \ ^{\circ}C[/tex]
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Verified answer
m=30 g = 0,03 kg
t₁=5 ⁰C
Q=39 J
cw=130 J/(kg ⁰C)
t₂ = ?
[tex]Q=c_w*m*\Delta T=c_w*m*(t_2-t_1)\\ \\t_2-t_1=\frac{Q}{c_w*m}\\ \\t_2=\frac{Q}{c_w*m}+t_1=\frac{39 \ [J]}{130 \ [\frac{J}{kg \ ^{\circ}C}]*0,03 \ [kg]}+5 \ [^{\circ}C]=10+5=15 \ ^{\circ}C[/tex]