Answer:
Explanation:
Quantity of heat required by 10 gram of ice initially warm it from -5°C to 0°C:
here;
mass, m = 10 g
specific heat capacity of ice, 
change in temperature, 
Amount of heat required to melt the ice at 0°C:
where, 
we know that no. of moles is = (wt. in gram) 
(molecular mass)
Now, the heat required to bring the water to 70°C from 0°C:
specific heat of water, 
change in temperature, 
Therefore the total heat required to warm 10.0 grams of ice at -5.0°C to a temperature of 70.0°C:
Answer:
To calculate the pressure when temperature and volume has changed, we use the equation given by combined gas law. The equation follows:
\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}
T
1
P
1
V
1
=
T
2
P
2
V
2
where,
P_1,V_1\text{ and }T_1P
1
,V
1
and T
1
are the initial pressure, volume and temperature of the gas
P_2,V_2\text{ and }T_2P
2
,V
2
and T
2
are the final pressure, volume and temperature of the gas
We are given:
\begin{gathered}P_1=760mmHg\\V_1=175L\\T_1=15^oC=[15+273]K=288K\\P_2=640mmHg\\V_2=198L\\T_2=?K\end{gathered}
P
1
=760mmHg
V
1
=175L
T
1
=15
o
C=[15+273]K=288K
P
2
=640mmHg
V
2
=198L
T
2
=?K
Putting values in above equation, we get:
\begin{gathered}\frac{760mmHg\times 175L}{288K}=\frac{640mmHg\times 198L}{T_2}\\\\T_2=274K\end{gathered}
288K
760mmHg×175L
=
T
2
640mmHg×198L
T
2
=274K
Hence, the temperature when the volume and pressure has changed is 274 K
Answer:
the number of atoms
Explanation:
atoms are never created not destroyed
Answer:
Cuando se agrega ácido clorhídrico diluido a piezas de mármol que son carbonato de calcio, se forma cloruro de calcio, agua y gas de dióxido de carbono. ... Nota - Todos los ácidos minerales descomponen el mármol que es carbonato de calcio en sales solubles y gas de dióxido de carbono.
Explanation:
que tengas un buen dia amor <3
