BTEC Chemistry Level 3 (Applied science)-Exam
QUESTIONS with Verified 100% Correct Answers|
Latest 2024/2025 update
what are the three standard conditions - ✔✔temperature
concentration
pressure
what are the units for the three standard conditions - ✔✔temperature- 298k
concentration- 1mol dm-3
pressure- 100kpa
what is the equation for enthalpy change - ✔✔change in internal energy + pressure x
change in value
how o you convert Celsius to kelvin - ✔✔+ 273
What is a catalyst? - ✔✔a substance that speeds up the rate of reaction by
decreasing the activation energy needed for the reaction, so it provides the reaction
with an alternate pathway. the catalyst is never used up throughout the reaction
What is Hess's Law? - ✔✔The total enthalpy change of a reaction is independent of
the route taken.
What is lattice energy? - ✔✔the energy required to make one mole of an ionic lattice
, what is the homologous series? - ✔✔A group of chemicals that react in a similar way
because they have the same functional group
what type of bond is an alkane? - ✔✔single
what type of bond is an alkene? - ✔✔Double
what type of bond is an alkyne - ✔✔Tripple
what is the general equation for an alkane? - ✔✔Cn2H2n+2
what is the general equation for an alkene? - ✔✔Cn2H2n
what is the general equation for an alkyne? - ✔✔Cn2H2n-2
what is the name given to a compound with one carbon chain - ✔✔meth
what is the name given to a compound with two carbon chain - ✔✔eth
what is the name given to a compound with three carbon chain - ✔✔prop
what is the name given to a compound with four carbon chain - ✔✔but
what is the name given to a compound with five carbon chain - ✔✔pent
QUESTIONS with Verified 100% Correct Answers|
Latest 2024/2025 update
what are the three standard conditions - ✔✔temperature
concentration
pressure
what are the units for the three standard conditions - ✔✔temperature- 298k
concentration- 1mol dm-3
pressure- 100kpa
what is the equation for enthalpy change - ✔✔change in internal energy + pressure x
change in value
how o you convert Celsius to kelvin - ✔✔+ 273
What is a catalyst? - ✔✔a substance that speeds up the rate of reaction by
decreasing the activation energy needed for the reaction, so it provides the reaction
with an alternate pathway. the catalyst is never used up throughout the reaction
What is Hess's Law? - ✔✔The total enthalpy change of a reaction is independent of
the route taken.
What is lattice energy? - ✔✔the energy required to make one mole of an ionic lattice
, what is the homologous series? - ✔✔A group of chemicals that react in a similar way
because they have the same functional group
what type of bond is an alkane? - ✔✔single
what type of bond is an alkene? - ✔✔Double
what type of bond is an alkyne - ✔✔Tripple
what is the general equation for an alkane? - ✔✔Cn2H2n+2
what is the general equation for an alkene? - ✔✔Cn2H2n
what is the general equation for an alkyne? - ✔✔Cn2H2n-2
what is the name given to a compound with one carbon chain - ✔✔meth
what is the name given to a compound with two carbon chain - ✔✔eth
what is the name given to a compound with three carbon chain - ✔✔prop
what is the name given to a compound with four carbon chain - ✔✔but
what is the name given to a compound with five carbon chain - ✔✔pent
