Forums · General English Grammar & Vocabulary, Listening & Speaking · General English Grammar Questions
Please advise me regarding the vowel usage in the following sentence:
"The photoluminescence quantum yield of a W-based polymer was 15 times higher than that of an Rh-based one."
An is used before a vowel sound not necessarily an actually written vowel. R is said as 'ar' or 'ah' - starting with an a sound.
People are waiting to help.
Live chatRegistered users can join here
Related forum topics:
A or an before a vowel (Guest:SSTOTLER)?Apostrophe use with proper name ending in a vowel?WHEN IS "w" A VOWEL?Vowel?Teaching vowel sounds?How many vowel sounds?Basic words list classified by vowel sounds --...stretching the vowel?W is a vowel?different pronunciations for THE before...vowel length distinction before voiced or unv....How to distinguish between long vowel and short...W as a vowel?"A" before adjective starting with a vowel?Is there a short vowel /I/ in American...Is /u/ sound in 'university' a vowel sound?