Answer:
Explanation:
Givens
P = 1.25 atm
V = 5.4 L
P1 = 3 atm
V1 = ??
Formula
The basic formula is P*V = P1 * V1
Solution
1.25 * 5.4 = 3 * V1
6.75 = 3*V1
6.75 /3 = 3*V1/3
2.25 = V1
Answer:
1.75 atm
Explanation:
When the pressure that a gas exerts on a sealed container changes from 1.75 atm to 2.64 atm, the temperature changes from 315 K to 475 K.
(2.64 atm) x (315 K / 475 K) = 1.75 atm
The pressure and temperature of a gas in a sealed container are directly proportional. An increase in temperature would imply that the pressure also increased.
Answer:1.75 atm
Explanation:
In a closed system, increase in pressure leads to increase in temperature. Using pressure law, P1/T1 = P2/T2
Data =
P1 =?
P2 = 2.64 atm
T1 = 315k
T2 = 475k
From the equation above,
P1 = P2 * T1 / T2
P1 = 2.64*315 / 475
P2 = 1.75 atm
Answer:
element S is argon and element T is potassium.
4. B
5. D
Explanation:
in an element in periodic table number of elctrons and protons are same.
4. since element S has 18 protons so its atomic number must be 18 so the element is Argon which is the last element of period 4 so the next element will go to period 4 with one extra shell and since the atomic number of next element is 19 the element is Potassium. therefore T is Potassium.
5. number of nucleons in an atom is the number of protons and neutons combined together in an nucleus
Answer:
A: ones that can best adapt to and survive in the changed environment
Explanation: