Answer:
Specific Heat Capacity = 0.901 J.g⁻¹.°C⁻¹
Heat is Exothermic
Explanation:
Specific heat capacity is the amount of heat required to raise the temperature of a given amount of substance by one degree.
Also, Exothermic reactions are those reaction in which the heat is lost from the system to surrounding while, endothermic reactions are those in which the system gains heat from the surroundings.
The equation used for this problem is as follow,
Q = m Cp ΔT ----- (1)
Where;
Q = Heat = 14200 J
m = mass = 350 g
Cp = Specific Heat Capacity = ??
ΔT = Change in Temperature = 70 °C - 25 °C = 45 °C
Solving eq. 1 for Cp,
Cp = Q / m ΔT
Putting values,
Cp = 14200 J / (350 g × 45 °C)
Cp = 0.901 J.g⁻¹.°C⁻¹
As the heat is lost by the metal therefore, the heat is exothermic.
3Ni + Sn3(PO4)2 → Ni3(PO4)2 + 3Sn I think. Not for sure though
Answer:
Increase
Explanation:
According to Gay-Lussac Law,
The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.
Mathematical relationship:
P₁/T₁ = P₂/T₂
If the initial temperature and pressure is standard,
Pressure = 1 atm
Temperature = 273.15 K
then we increase the temperature to 400.0 K, The pressure will be,
1 atm / 273.15 K = P₂/400.0K
P₂ = 1 atm × 400.0 K / 273.15 K
P₂ = 400.0 atm. K /273.15 K
P₂ = 1.46 atm
Pressure is also increase from 1 atm to 1.46 atm.
Answer:
the eye socket
Explanation:
the area around the eye is called the eye socket or the eye orbit.
