Answer:
Heat, Q = 45 J
Explanation:
We have,
Mass of aluminium is 5 g
The temperature is raised from 22°C to 32°C.
The specific heat of aluminium is 0.90 J/g°C.
It is required to find the heat are needed to raise the temperature.
The heat required to raise the temperature is given by :
So, 45 J of heat are needed to the temperature of 5.0 g of aluminum from 22°C to 32°C.
Answer:
Second one
Explanation:
I think it's the second cause there's no energy w/o heat. So it's the second.
The correct answer is polarizing power increase.
The polarizing power of these ions grows as they move through a period because their charge increases and their size decreases. The size grows and the polarizing strength reduces as one descends a group. These two effects somewhat cancel each other out while travelling diagonally, preventing a noticeable change in attributes. As a result, the attributes of these diagonally oriented elements behave similarly.
What is polarizing power?
The capacity of a cation to distort an anion is known as its polarization power. The term "polarizability" refers to an anion's propensity to get polarized by a cation. The charge and radius of a cation affect its ability to polarize. The relationship between charge and radius and cation polarization power. Because they are directly proportional to one another, polarization power of the cation increases as cation charge increases.
To learn more about alkaline earth metals refer the link:
brainly.com/question/12835232
#SPJ4
Answer:
The pressure in the container is 1,7 atm.
Explanation:
We convert the unit of temperature in Celsius into Kelvin:
0°C= 273K --> 45°C= 45 + 273= 318 K
We use the formula:
PV=nRT ---> P =nRT/V
P= 1,20 mol x 0,082 l atm/K mol x 318 K/18,0 L
<em>P= 1, 7384 atm</em>
Answer:
It is observed that H2 gas gives out 286kJ/m, Methane gives out 802.3kJ/m and hexane gives out 4163kJ/m of heat. They are all exergonic or exothermic reaction but have different values of heat given out. The amount of carbon atom present, is what determines the heat given out, as higher carbon compound like Hexane gave out more heat than Methane and Hydrogen gas have out the least.
Explanation: