Answer:
100 °C, because it is the boiling point of water.
Explanation:
The specific heat capacity of unknown substance is 1.333 g/j/°c
<u><em> calculation</em></u>
Specific heat capacity is calculated using Q= MCΔT formula
where;
Q(heat)= 800 j
M(mass) = 30 g
C(specific heat capacity) =?
ΔT( change in temperature) = 40°c - 20°c = 20°c
make C the subject of the formula by diving both side of the formula by MΔT
C is therefore = Q/MΔT
800j / 30 g x 20°c = 1.333 j/g/°c
Answer:
The answer to your question is: second option.
Explanation:
An exothermic reaction is a reaction that releases energy to the environment.
Thermal energy is absorbed by the system.
This sentence is describing an endothermic reaction.
Thermal energy is absorbed by the surroundings.
This sentence is describing an exothermic reaction.
Thermal energy is not transferred. This sentence is describing an isolated system.
The initial and final temperatures of the system remains the same. This option is incorrect is not describing an exothermic reaction.
Answer:
Explanation:
Here, we want to get the new volume of the gas
What we need to know is the law that connects volume and pressure at constant temperature
The law that supports this is the Boyle's law
It states that the volume of a given mass of gas is inversely proportional to its pressure at constant temperature
Mathematically, we can have this as represented as:
We can proceed mathematically to solve as follows;
The components : a solvent which is the component of the solution and the solute.
