Answer:
0.3415 J/g °C
Explanation:
M1 = 213.0g
c1 = ?
T1 = 70.2°C
T3 = 25.6 °C
T2 = 22.5°C
C2 = 4.186 J/g°C
Vol. of water = 250mL = 250cm³
p (density of water ) = 1g/L
p = mass / volume
mass (m) = density (p) * volume (v)
m = 1 * 250 = 250g
Heat loss by metal = heat gain by water
Q1 = Q2
Mc∇T = Mc∇T
Mc (T1 - T3) = Mc* (T3 - T2)
213 * c * (70.2 - 25.6) = 250 * 4.186 * (25.6 - 22.5)
(213 * 44.6)c = 1046.5 * 3.1
9499c = 3244.15
c = 0.3415 J/g.°C
The specific heat capacity of the metal is 0.3415 J/g °C
Answer: The correct answer is The aplastic potential energy of the spring will be two times greater than the gravitational potential energy of the object.
Explanation: The formula for Gravitational potential energy is= mgh where
m= mass
g= 9.8
h= height
On the other hand the formula for elastic potential energy is (1/2)KX^2
Where K is the spring. By changing the values of H and X, we will see elastic potential energy will remain more.
The number of molecules that are in balloon are = 2.227 x10^23 molecules
<h3> calculation</h3>
calculate the number of moles of NO
moles = mass/molar mass
molar mass of NO = 14+ 16 = 30 g/mol
moles is therefore= 11.1 g/30g/mol= 0.37 moles
by use of Avogadro's constant that is
1 mole= 6.02 x10^23 molecules
0.37 =? molecules
=(6.02 x10^23 x 0.37 moles)/ 1mole=2.227 x10^23 molecules
The phase change occurs during evaporation. On a hot day, wet clothing is drying. A liquid becomes a gas when it evaporations.
During the process of evaporation, a liquid transforms into a gaseous phase that is not saturated with the evaporating substance. The term "vaporization of a liquid" refers to this process. Clothes start to dry as water vapor escapes from the fabric's surface.
<h3>
What is evaporation?</h3>
A liquid turns into a gas through the process of evaporation. Raindrops that "vanish" on a hot day or damp clothing that dries in the sun are good examples of the phenomena. In these instances, the liquid water is evaporating into a gas known as water vapor rather than really dissipating. Global evaporation takes place.
Learn more about evaporation: brainly.com/question/5019199
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44.0095 you're welcome hope this helps
