Answer: 2175.68 J heat is required to increase the temperature of 20 grams of water by 26 degrees celsius.
Explanation:
Given: Mass = 20 g
Change in temperature = 
The standard value of specific heat of water is 
Formula used to calculate the heat energy is as follows.
where,
q = heat energy
m = mass of substance
C = specific heat of substance
= change in temperature
Substitute the values into above formula as follows.
Thus, we can conclude that 2175.68 J heat is required to increase the temperature of 20 grams of water by 26 degrees celsius.
Hello!
The molecule with the strongest intermolecular forces is CO₂ (Carbon Dioxide)
All the listed substances are nonpolar molecules, meaning that there isn't a dipolar moment (a difference in polarity resulting from the arrangement of atoms and electronegativity differences). Nonpolar molecules only have intermolecular interaction in the form of London dispersion forces.
London Dispersion Forces are stronger as the molecule size is bigger, so of the listed substances the biggest is CO₂, and it has the strongest intermolecular forces. This is evidenced by the fact that this substance has the highest boiling point of them all.
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Answer:
The density of the liquid in beaker B is less than the that of ice.
Explanation:
Ice will float if its mass is less than the mass of the liquid it displaces.
For example, the density of ice is less than that of water.
A 10 cm³ cube of ice has a mass of about 9 g, while the mass of 10 cm³ of water is 10 g. Thus, 9 g of ice displaces 10 g of water.
The denser water displaces the lighter ice and the ice floats to the top.
If the density of the liquid is <em>less than</em> that of water, say, 8 g/cm³, the ice will displace only 8 g of the liquid. The ice will sink.
Answer:
40 seconds chief just double it
Explanation:
Neutron. Its is foumd inside nucleus along with protons and are electrically neutral.
